# ISO 9277:1995 — Withdrawn and superseded ISO standards

For ISO 9277:1995, item title is Determination of the specific surface area of solids by gas adsorption using the BET method; status code is 9599; successor is ISO/PWI 9277-1 | ISO 9277:2010 | ISO/PWI 9277-2; withdrawn / published date is 1995-05-18, recorded from its source on 2026-08-05.

- **Identifier:** ISO 9277:1995 _(verified: appears in the quote below)_
- **Item title:** Determination of the specific surface area of solids by gas adsorption using the BET method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/PWI 9277-1 | ISO 9277:2010 | ISO/PWI 9277-2
- **Withdrawn / published date:** 1995-05-18 _(verified: appears in the quote below)_

## What the source says

> 16928,IS,,ISO 9277:1995,Determination of the specific surface area of solids by gas adsorption using the BET method,Détermination de l'aire massique (surface spécifique) des solides par adsorption de gaz à l'aide de la méthode BET,1995-05-18,1,['19.120'],ISO/TC 24/SC 4,9599,,"[43805,44941,43806]","['en','fr']",11,"<p>Specifies the determination of the total specific external and internal surface area of disperse or porous solids by measuring the amount of physically adsorbed gas according to the method of Brunauer, Emmett and Teller (BET method). The BET method is applicable only to adsorption isotherms of type II and type IV. The BET method cannot reliably be applied to type I isotherms or

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).